Hi going into my third year pre diagnosis - had two MRI’s both with white matter changes to my left frontal lobe. All other tests lumbar etc have come back negative, although I was referred to cardiology and they found mild dilation to my ascending aorta. I still experience numbness etc head pain, restriction at times to left side/arm which lasts for under a minute each time. I also gave a cough which won’t go away and some memory and speech issues - just wait my third MRI can anyone have MS with negative test results